/
main.go
109 lines (90 loc) · 2.63 KB
/
main.go
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package main
import (
"context"
"crypto/tls"
"crypto/x509"
"flag"
"fmt"
"go.opentelemetry.io/otel/attribute"
"google.golang.org/grpc/credentials"
"io/ioutil"
"os"
"time"
_ "github.com/joho/godotenv/autoload"
"github.com/tel-io/tel/v2"
"github.com/tel-io/tel/v2/otlplog/logskd"
"github.com/tel-io/tel/v2/otlplog/otlploggrpc"
"github.com/tel-io/tel/v2/pkg/logtransform"
"go.opentelemetry.io/otel/sdk/resource"
semconv "go.opentelemetry.io/otel/semconv/v1.10.0"
"go.uber.org/zap/zapcore"
)
var addr = "0.0.0.0:4317"
var insecure bool
func load() {
flag.BoolVar(&insecure, "insecure", false, "do it")
flag.StringVar(&addr, "addr", "0.0.0.0:4317", "grpc addr")
if v, ok := os.LookupEnv("OTEL_COLLECTOR_GRPC_ADDR"); ok {
addr = v
}
flag.Parse()
fmt.Println("addr", addr)
}
func main() {
load()
ctx := context.Background()
opts := []otlploggrpc.Option{otlploggrpc.WithEndpoint(addr)}
if insecure {
opts = append(opts, otlploggrpc.WithInsecure())
} else {
opts = append(opts, otlploggrpc.WithTLSCredentials(createClientTLSCredentials()))
}
client := otlploggrpc.NewClient(opts...)
if err := client.Start(ctx); err != nil {
tel.Global().Fatal("start client", tel.Error(err))
}
defer func() {
_ = client.Stop(ctx)
}()
res, _ := resource.New(ctx, resource.WithAttributes(
// the service name used to display traces in backends
// key: service.name
semconv.ServiceNameKey.String("PING"),
// key: service.namespace
semconv.ServiceNamespaceKey.String("TEST"),
// key: service.version
semconv.ServiceVersionKey.String("TEST"),
semconv.ServiceInstanceIDKey.String("LOCAL"),
))
if err := client.UploadLogs(ctx, logtransform.Trans(res, []logskd.Log{logg()})); err != nil {
tel.Global().Fatal("test upload logs", tel.Error(err))
}
tel.Global().Info("OK")
}
func logg() logskd.Log {
return logskd.NewLog(zapcore.Entry{
Level: zapcore.InfoLevel,
Time: time.Now(),
LoggerName: "XXX",
Message: "XXX",
}, attribute.Key("HELLO").String("WORLD"))
}
func createClientTLSCredentials() credentials.TransportCredentials {
cert, err := tls.LoadX509KeyPair("x509/client1.crt", "x509/client1.key")
if err != nil {
tel.Global().Fatal("tls.LoadX509KeyPair(x509/client1_cert.pem, x509/client1_key.pem)", tel.Error(err))
}
roots := x509.NewCertPool()
b, err := ioutil.ReadFile("x509/ca.crt")
if err != nil {
tel.Global().Fatal("ioutil.ReadFile(x509/ca.crt)", tel.Error(err))
}
if !roots.AppendCertsFromPEM(b) {
tel.Global().Fatal("failed to append certificates")
}
return credentials.NewTLS(&tls.Config{
Certificates: []tls.Certificate{cert},
RootCAs: roots,
ServerName: "localhost",
})
}